Advertisement
CPU Units with 20 I/O Points
For Connections to a Negative Common (PNP Connection)
12 to 24 VDC
COM
I0
I1
I2
I3
CPU Unit with 20 I/O points
For Connecting Analog Input Devices to Input Terminals Ia and Ib
12 to 24 VDC
COM
I 0
I 1
I 2
I 3
CPU Unit with 20 I/O points
Note: When connecting an analog input device, always connect the negative side to the COM terminal.
For Connections to Positive (+) Common (NPN Connection)
12 to 24 VDC
−
+
COM
I0
I1
I2
I3
CPU Units with 20 I/O points
Note: When connected to the positive (+) common, Ia and Ib cannot be used as analog inputs.
Expansion I/O Units
Note: 1. Supply power to both the CPU Unit and Expansion I/O Units from the same power supply and turn them ON and OFF at the same time.
2. ZEN-8E1AR Expansion I/O Units with AC inputs cannot be connected to CPU Units with DC power supply.
3. The input circuit commons for ZEN-8E1DR Expansion I/O Units with relay outputs are each internally connected to one side of the power
supply circuit (COM terminal).
4. ZEN-8E1DT Expansion I/O Units with transistor outputs do not need to be connected to a power supply.
For Connections to Negative (−) Common
12 to 24 VDC
−
+
COM
I0
I1
I2
I3
CPU Unit with 10 I/O points
For Connections to Positive (+) Common
12 to 24 VDC
−
+
COM
I0
I1
I2
I3
CPU Unit with 10 I/O points
14
Programmable Relay
Input device
I4
I5
NC
I6
I7
I8
I9
Ia
Ib
I4
I5
N C
I6
I 7
I 8
I 9
I a
Ib
Input device
I4
I5
NC
I6
I7
I8
I9
Ia
Ib
Input
device
±
I4
I5
COM IN0 IN1 IN2 IN3
ZEN-8E1DR
Expansion I/O Unit
(DC input, relay output)
Input
device
±
I4
I5
COM IN0 IN1 IN2 IN3
ZEN-8E1DR
Expansion I/O Unit
(DC input, relay output)
ZEN V2 Units
Input
device
NC
COM
IN0 IN1 IN2 IN3
ZEN-8E1DT
Expansion I/O Unit
(DC input, transistor output)
Input
device
NC
COM
IN0 IN1 IN2 IN3
ZEN-8E1DT
Expansion I/O Unit
(DC input, transistor output)
Advertisement
